In the above diagram, point A represents 100% of substance A. Three vertices of the triangle represent three pure substances. Let's move forward to details.Īs a ternary diagram represents three different substances, it is a three-dimensional plot drawn on a two-dimensional plane. Now, you have understood some basics of a ternary diagram. In the following text, we will continue with equilateral triangles only since they are most commonly used and easy to understand. However, you can do that with a non-equilateral triangle too. Here, we have taken an equilateral triangle, which is very common, to represent compositional data. These alphabets represent three different substances.Ī ternary diagram is always a triangle with each of its three corners representing a pure substance. A typical example of a ternary diagramĪs we can see, each of the three corners of a triangle is labeled by alphabets: A, B, and C. They are mainly used to study compositional data for a mixture of three different substances.īelow is an example of a typical ternary diagram. Ternary diagrams or ternary plots are very common in chemical engineering, physical chemistry, metallurgy, genetics (de Finetti diagram), and other physical sciences.
